I recently upgraded my Oura ring (sz 9) to Gen 3 and had only had this Gen 2 ring for about 3 months (no scuffs!) - it works perfectly and has been reset to the original factory settings. Color: Stealth Black. Ring + charger. Note that the new Gen 3 ring is going to require a subscription and the Gen 2 does not. (sizing kit also pictured)
I paid $300 for it, and that's what a new Gen 3 costs + the subscription.
Selling for $130